JPS5522235A - Optical reproducing device - Google Patents

Optical reproducing device

Info

Publication number
JPS5522235A
JPS5522235A JP9333478A JP9333478A JPS5522235A JP S5522235 A JPS5522235 A JP S5522235A JP 9333478 A JP9333478 A JP 9333478A JP 9333478 A JP9333478 A JP 9333478A JP S5522235 A JPS5522235 A JP S5522235A
Authority
JP
Japan
Prior art keywords
output
disk
fluctuation
focus control
oscillator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP9333478A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6118811B2 (enrdf_load_stackoverflow
Inventor
Tadao Nagai
Yuji Tsuyukuchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teac Corp
Original Assignee
Teac Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Teac Corp filed Critical Teac Corp
Priority to JP9333478A priority Critical patent/JPS5522235A/ja
Publication of JPS5522235A publication Critical patent/JPS5522235A/ja
Publication of JPS6118811B2 publication Critical patent/JPS6118811B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Optical Recording Or Reproduction (AREA)
JP9333478A 1978-07-31 1978-07-31 Optical reproducing device Granted JPS5522235A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9333478A JPS5522235A (en) 1978-07-31 1978-07-31 Optical reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9333478A JPS5522235A (en) 1978-07-31 1978-07-31 Optical reproducing device

Publications (2)

Publication Number Publication Date
JPS5522235A true JPS5522235A (en) 1980-02-16
JPS6118811B2 JPS6118811B2 (enrdf_load_stackoverflow) 1986-05-14

Family

ID=14079363

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9333478A Granted JPS5522235A (en) 1978-07-31 1978-07-31 Optical reproducing device

Country Status (1)

Country Link
JP (1) JPS5522235A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60247831A (ja) * 1984-02-09 1985-12-07 ゼロツクス　コ−ポレ−シヨン 自動焦点オフセツト補正方式
JPH0185919U (enrdf_load_stackoverflow) * 1987-11-26 1989-06-07

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60247831A (ja) * 1984-02-09 1985-12-07 ゼロツクス　コ−ポレ−シヨン 自動焦点オフセツト補正方式
JPH0185919U (enrdf_load_stackoverflow) * 1987-11-26 1989-06-07

Also Published As

Publication number Publication date
JPS6118811B2 (enrdf_load_stackoverflow) 1986-05-14

Similar Documents

Publication Publication Date Title
AU539974B2 (en) Optical disc beam focus control
EP0051343B1 (en) Signal processing for digital optical disc players
JPS54160211A (en) Method and apparatus for information recording and reproducing
JPS57208642A (en) Focus controller
JPS57150144A (en) Optical recorder and reproducer
JPS5280802A (en) Optical type information recording and reproduction apparatus
JPS5522235A (en) Optical reproducing device
JPS5538686A (en) Tracking controller of optical information reader
JPS55122240A (en) Optical recording and reproducing device
JPS54153006A (en) Controlling methof for drift of reproduction light power of image signal
JPS53100203A (en) Optical reproducer
US5268885A (en) Method and means for detecting and stablizing control loop parameters of apparatus for scanning a record carrier
JPS54107311A (en) Fluctuation compensator of reproduction envelope signal in optical recorder-reproducer
JPS53110805A (en) Optical information recording/reproducing device
JPS5625266A (en) Positioning system for magnetic head
JPH11345460A (ja) 光ディスク装置
JPS55118184A (en) Optical recording device
JPS5538685A (en) Optical information reproducing device
JPS5570941A (en) Mirror control circuit for optical information recording or reproducing unit
JPS57178391A (en) Controller for oscillating output of semiconductor laser
JPS55125543A (en) Optical recorder/reproducer
JPS54116901A (en) Signal reproducer
JPS5532245A (en) Optical recorder and reproducing device
JPS5577041A (en) Optical recording carrier reader
JPS55160335A (en) Photodisk recorder